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ath9k: Use straightforward PCI routines to setup the TX buffer.

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Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2008-11-18 09:10:42 +05:30 committed by John W. Linville
parent daa9deb359
commit 8f93b8b337
1 changed files with 7 additions and 16 deletions
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23
drivers/net/wireless/ath9k/xmit.c
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@ -1646,7 +1646,7 @@ static void ath_txq_drain_pending_buffers(struct ath_softc *sc,
}
static void ath_tx_setup_buffer(struct ath_softc *sc, struct ath_buf *bf,
struct sk_buff *skb, struct scatterlist *sg,
struct sk_buff *skb,
struct ath_tx_control *txctl)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
@ -1711,7 +1711,6 @@ static void ath_tx_setup_buffer(struct ath_softc *sc, struct ath_buf *bf,
/* FIXME: tx power */
static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf,
struct scatterlist *sg, u32 n_sg,
struct ath_tx_control *txctl)
{
struct sk_buff *skb = (struct sk_buff *)bf->bf_mpdu;
@ -1740,10 +1739,10 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf,
bf->bf_keyix, bf->bf_keytype, bf->bf_flags);
ath9k_hw_filltxdesc(ah, ds,
sg_dma_len(sg), /* segment length */
true, /* first segment */
(n_sg == 1) ? true : false, /* last segment */
ds); /* first descriptor */
skb->len, /* segment length */
true, /* first segment */
true, /* last segment */
ds); /* first descriptor */
bf->bf_lastfrm = bf;
@ -1783,7 +1782,6 @@ int ath_tx_start(struct ath_softc *sc, struct sk_buff *skb,
struct ath_tx_control *txctl)
{
struct ath_buf *bf;
struct scatterlist sg;
/* Check if a tx buffer is available */
@ -1794,15 +1792,8 @@ int ath_tx_start(struct ath_softc *sc, struct sk_buff *skb,
return -1;
}
ath_tx_setup_buffer(sc, bf, skb, &sg, txctl);
/* Setup S/G */
memset(&sg, 0, sizeof(struct scatterlist));
sg_dma_address(&sg) = bf->bf_dmacontext;
sg_dma_len(&sg) = skb->len;
ath_tx_start_dma(sc, bf, &sg, 1, txctl);
ath_tx_setup_buffer(sc, bf, skb, txctl);
ath_tx_start_dma(sc, bf, txctl);
return 0;
}